Gayathri Vijayakumar is a Principal Mechanical Engineer at Steven Winter Associates, Inc., a RESNET Accredited Rating Provider. She graduated from the Pennsylvania State University with a BS in Engineering Science and from the University of Wisconsin-Madison with a MS in Mechanical Engineering and a Graduate Certificate in Energy Policy and Management. Gayathri currently provides technical support to the EPA's Indoor airPLUS program and ENERGY STAR Multifamily New Construction programs. She has over 15 years of experience supporting high-performance multifamily buildings and is currently a voting member of the 2024 IECC Residential Consensus Committee and Chair of RESNET’s Standards Development Committee, SDC300.